JPH0586618U - Air conditioner capacitor - Google Patents

Abstract

(57) [Abstract] [Purpose] To improve the cooling efficiency of a condenser and the cooling efficiency of a radiator in an air conditioner installed in a vehicle. [Structure] The refrigerant tube 4 is attached to the header pipe 6 while being inclined with respect to the traveling direction. As a result, the area of the refrigerant tube 4 in contact with the cooling air W is increased, so that the cooling air W is in large contact with the tube surface 5, and the refrigerant tube 4 also performs heat exchange.
Therefore, the cooling efficiency of the refrigerant tube 4 is improved.
Furthermore, since the refrigerant tube 4 is inclined, the cooling air W (warm air) that has cooled the condenser 1 and passed through the condenser 1 is prevented from coming into contact with the radiator 3 in the rear portion by the inclined refrigerant tube 4. The flow direction will be decided. This prevents the warm air from exchanging heat with the radiator 3 and improves the cooling efficiency of the radiator 3.

Description

[Detailed description of the device]

[0001]

[Industrial applications]

 The present invention relates to a condenser for an air conditioner in which a mounting angle is changed so that cooling air comes into contact with the refrigerant tube of a parallel flow type condenser in which refrigerant tubes are arranged in parallel.

[0002]

[Prior Art]

 Conventionally, as an example of a condenser (condenser) used in a car air conditioner, there is one shown in FIGS. 4 and 5. In the figure, reference numeral 1 is a condenser for an air conditioner, which is arranged in front of a radiator 3 in an engine compartment 2 of an automobile. Reference numeral 4 is a refrigerant tube of the condenser 1. The refrigerant tubes 4 are flat, and a plurality of them are attached to the header pipe 6 at both ends thereof with the tube surfaces 5 in the vertical direction and at the same intervals (see also FIG. 6). There is.

A partition plug 7 that restricts the flow of the refrigerant and changes the flow direction of the refrigerant is attached inside the header pipe 6 (see FIG. 5). By connecting the refrigerant tube 4 to the header pipe 6 as described above, the refrigerant tubes 4 communicate with each other, and the condenser 1 is provided with a refrigerant flow path as indicated by an arrow 8 in FIG. It will be. Further, fins 9 are attached to the tube surfaces 5 of the cooling medium tube 4 which face each other.

As described above, the refrigerant tubes 4 are arranged with the tube surface 5 in the vertical direction, that is, because the refrigerant tubes 4 are arranged in parallel to the flow of the cooling air W ( (See also enlarged FIG. 7), the area ΔH1 of the refrigerant tube 4 in contact with the cooling air W is small, so that the fin 9 attached to the tube surface 5 of the refrigerant tube 4 is mainly used. It faces the cooling air W. Therefore, the cooling air W flows in contact with the fins 9, and the heat exchange is mainly performed by the fins 9. In FIG. 7, the reference numeral 10 indicates the tube pitch, and the reference numeral 11 indicates the tube width.

[0005] Incidentally, as an improved fin shape of the evaporator of the vehicle air conditioner, there is one disclosed in Japanese Utility Model Laid-Open No. 56-170012. In this publication, the shape of the fins of the evaporator is U-shaped or inclined so that the fins of the evaporator are easily deformed by the impact force in the vehicle front-rear direction.

[0006]

[Problems to be solved by the device]

 In the prior art described above, the refrigerant tube 4 is attached to the header pipe 6 with the tube surface 5 facing up and down, that is, the refrigerant tube 4 is placed parallel to the flow of the cooling air W. Therefore, the area ΔH1 of the refrigerant tube 4 in contact with the cooling air W is extremely small, the heat exchange in the refrigerant tube 4 is small, and most of the heat exchange is performed by the fins 9 provided in the refrigerant tube 4. Was there. Therefore, the cooling efficiency of the refrigerant tube 4 was low. Further, since the cooling air W (warm air) that has cooled the condenser 1 acts as the cooling air W of the radiator 3, there is also a problem that the cooling efficiency of the radiator 3 decreases.

The improved fin shape of the evaporator of the vehicle air conditioner disclosed in Japanese Utility Model Laid-Open No. 56-170012 is not the one in which the portion of the tube through which the refrigerant flows is inclined but the fin. Since the above-mentioned part is inclined so as to be easily deformed and the contact area of the cooling air of the tube is not increased, the problem of the present invention has not been solved.

The present invention has been made to solve the above-mentioned conventional problems, and changes the mounting angle of the cooling medium tube of the condenser so that cooling air can easily come into contact with the cooling medium tube. It is an object of the present invention to provide a condenser for an air conditioner that improves the cooling efficiency of the radiator by increasing the number of replacements and improves the cooling efficiency of the radiator.

[0009]

[Means for Solving the Problems]

 As a means for solving the above problems, the present invention is for an air conditioner in which header pipes for communicating the refrigerant tubes with each other are attached to both ends of a plurality of flat refrigerant tubes arranged in parallel. In the condenser, the refrigerant tube is attached to the header pipe while inclining the refrigerant tube so that the cooling air comes into contact with the tube surface of the refrigerant tube.

[0010]

[Action]

 As described above, according to the present invention, since the refrigerant tube is attached to the header pipe while being inclined with respect to the traveling direction, the area of the refrigerant tube in contact with the cooling air increases. As a result, a large amount of cooling air comes into contact with the tube surface, and heat is also exchanged by the refrigerant tube. Further, since the refrigerant tube is inclined, the cooling air (warm air) that has cooled the condenser and passed through the condenser has its flow direction determined by the inclined refrigerant tube so that it does not come into contact with the rear radiator. Will be

[0011]

【Example】

 An embodiment of the present invention will be described below with reference to FIGS. 1 and 2 by assigning the same reference numerals to the same members as those in FIGS. In the figure, reference numeral 1 denotes a condenser, which is attached to a front portion of a radiator 3 in an engine compartment 2 (see FIG. 4) of a vehicle. This capacitor 1 is of a parallel flow type in which a plurality of flat refrigerant tubes 4 are arranged in parallel with each other and connected to a header pipe 6 (see FIG. 5).

Fins 9 (see FIG. 5) for preventing the temperature rise of the condenser 1 are provided on the tube surface 5 of the refrigerant tube 4. Further, the refrigerant tube 4 is inclined (see enlarged FIG. 2) with respect to the traveling direction of the vehicle so that the cooling air W comes into contact with the tube surface 5 thereof, that is, , Is attached to the header pipe 6 at an angle A.

The inclination direction of the refrigerant tube 4 is determined by the mounting relationship between the condenser 1 and the radiator 3. That is, as shown in FIG. 1, when the condenser 1 is located below the radiator 3, the refrigerant tube 4 is tilted rearward and brazed so that the cooling air W below the condenser 1 does not come into contact with the radiator 3. Fix it.

Further, as shown in FIG. 3, when the condenser 1 is located above the radiator 3, the refrigerant tube 4 is tilted rearward and upward so that the cooling air W above the condenser 1 does not come into contact with the radiator 3. And fix it by brazing. The inclination angle A of the refrigerant tube 4 varies depending on the tube pitch 10 (see FIG. 7) and the tube width (see FIG. 7), but is between 0 and 45 degrees. This is because there is a drawback that the wind loss increases when the inclination angle A is 45 degrees or more.

Next, the operation of this embodiment will be described. When the condenser 1 is installed at the lower part of the radiator 3 as described above, the refrigerant tube 4 should be inclined rearward so that the cooling air W at the lower part of the condenser 1 does not come into contact with the radiator 3. If so, the area ΔH2 of the cooling medium tube 4 in contact with the cooling air W increases, and the heat exchange in the refrigerant tube 4 increases, and the warm air that has cooled the refrigerant tube 4 exchanges heat in the radiator 3. The radiator 3 avoids the radiator 3 and escapes downward so that the cooling efficiency of the radiator 3 is improved.

When the condenser 1 is located above the radiator 3, the cooling medium tube 4 may be installed so as to be tilted rearward and upward so that the cooling air W above the condenser 1 does not come into contact with the radiator 3. For example, the area ΔH 2 of the refrigerant tube 4 in contact with the cooling air W becomes large as described above, heat exchange in the refrigerant tube 4 becomes possible, and the warm air that has cooled the refrigerant tube 4 causes the radiator. Since the radiator 3 avoids the radiator 3 and escapes to the upper side so as not to perform heat exchange, the cooling efficiency of the radiator 3 is improved.

[0017]

[Effect of the device]

 As described above, according to the present invention, since the refrigerant tube is attached to the header pipe while being inclined with respect to the traveling direction, the area of the refrigerant tube that comes into contact with the cooling air becomes large. As a result, a large amount of cooling air comes into contact with the tube surface, and heat is also exchanged by the refrigerant tube. Therefore, the cooling efficiency of the refrigerant tube is improved.

Further, since the refrigerant tube is inclined, the cooling air (warm air) that has cooled the condenser and passed through the condenser is directed by the inclined refrigerant tube so that the cooling air does not come in contact with the rear radiator. Will be decided. This prevents the warm air from exchanging heat with the radiator, thus improving the cooling efficiency of the radiator.

[Brief description of drawings]

FIG. 1 is a schematic side view showing an embodiment of the present invention.

FIG. 2 is a side view showing the main part of FIG. 1 in an enlarged manner.

FIG. 3 is a side view schematically showing a state in which a refrigerant tube is attached rearward and upward in FIG.

FIG. 4 is an explanatory diagram for explaining a capacitor.

FIG. 5 is a front view showing a conventional capacitor.

FIG. 6 is a side view schematically showing that of FIG.

FIG. 7 is a side view showing the mounting of the refrigerant tube of FIG. 6 in an enlarged manner.

[Explanation of symbols]

 1 Condenser 4 Refrigerant tube 5 Tube surface 6 Header pipe W Cooling air

Claims (1)

[Scope of utility model registration request] 1. A condenser for an air conditioner comprising a plurality of flat refrigerant tubes arranged in parallel and having header pipes at both ends thereof for communicating the refrigerant tubes with each other. A condenser for an air conditioner, wherein the refrigerant tube is attached to the header pipe while being inclined with respect to the traveling direction so that the cooling air comes into contact with the refrigerant tube.